A MÖSSBAUER STUDY OF THE IRON-CHROMIUM TYPE CATALYST FOR CO CONVERSION UNDER THE REACTION CONDITIONS Ding Ying-Ru, Yen Qi-Jie, Hsia Yuan-Fu, Yeh Shun-Hao, Chen Yi, Jin Yong-Shu et Qiu Jin-HengJ. Phys. Colloques, 41 C1 (1980) C1-341-C1-342DOI: https://doi.org/10.1051/jphyscol:19801127